"The need for emergency medical care has risen drastically," said Dr. Isabelle Defourny, MSF director of operations. "We have teams working around the clock treating men, women and children injured by bullets, blasts and shells. Other life-threatening emergencies also need a rapid medical response, such as for pregnant women in need of a C-section."

MSF medical teams in a field trauma hospital, set up when the new push in western Mosul began, have received more than 915 patients, according to the statement. Of those, 763 suffered war-related trauma, 190 of whom needed urgent lifesaving surgery.

More than half of the wounded were women or children under the age of 15, it said.